<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <script src="https://cdn.jsdelivr.net/npm/vue@2/dist/vue.js"></script>
</head>

<body>
  <div id="app">
    <form action="">
      <input type="text" v-model="mes">
      <h3>{{ mes }}</h3>

      <hr>
      <p>
        <input type="checkbox" value="篮球" v-model="checkList">篮球
        <input type="checkbox" value="足球" v-model="checkList">足球
        <input type="checkbox" value="羽毛球" v-model="checkList">羽毛球
        <input type="checkbox" value="排球" v-model="checkList">排球
      </p>
      <h3>{{ checkList }}</h3>

      <hr>
      <p>
        <input type="radio" value="篮球" v-model="radioValue">篮球
        <input type="radio" value="足球" v-model="radioValue">足球
        <input type="radio" value="羽毛球" v-model="radioValue">羽毛球
        <input type="radio" value="排球" v-model="radioValue">排球
      </p>
      <h3>{{ radioValue }}</h3>


      <hr>
      <textarea name="" id="" cols="30" rows="10" v-model="text"></textarea>
      <h3>{{ text }}</h3>

      <hr>
      <select name="" id="" v-model="sel">
        <option value="篮球">篮球</option>
        <option value="足球">足球</option>
        <option value="羽毛球">羽毛球</option>
        <option value="排球">排球</option>
      </select>
      <h3>{{ sel }}</h3>
    </form>
  </div>

  <script>
    let vm = new Vue({
      el: '#app',
      data: {
        mes: '哈哈哈',
        checkList: ['篮球', '排球'],
        radioValue: '羽毛球',
        text: '',
        sel: '排球'
      }
    })
  </script>
</body>

</html>